Today we will talk about the identification of the Mazda stringers, the picture above is an accident picture of the Mazda CX-9, and we will talk about the cutting of the stringers of this car today.
We disassemble the accident vehicle, you look at the right front side member of this car. For the right front stringer, you will see two deformations.
The first is the front part of the front stringer, with obvious bending marks, and the first is the middle and rear part of the stringer with slight deformation marks.
I'll zoom in on the second deformation position for you to take a closer look. If you zoom in, you can clearly see that there are obvious traces of deformation in this position, but you pay attention to the original factory that this position originally had this depression.
Here you have to distinguish between the deformation marks caused by the force impact and the dent marks of the original factory?
The dent marks of the original factory are a smooth transition state, while the traces of force deformation are relatively sharp, and you can clearly distinguish them in the picture above.
The problem is not a problem here, but the technician chooses to cut near this position, and that is the problem.
This cutting of the longitudinal beam should be selected according to the structure and position of the longitudinal beam, and the picture above is the actual cutting position and method, you pay attention to see.
After cutting, the technician directly selects a dismantled part for re-welding, and directly replaces the deformation of the front with the old part.
Finally, the technician smooths the welding position with a sander and then sprays a new layer of paint directly. If it needs to be refined, the paint finish will be aged. In the end of such a repair, can you see that the stringers have cut marks?
This is the repaired right front sidestringer, and you should note that the recess above is the original factory. Mazda cut the front side member like this, even if it does not need to be refined, few people can see the cut,
This kind of stringer cutting is very hidden according to the characteristics of the stringer to choose the cutting position, and the front rails of many Mazda vehicles are of this structure, not only the Mazda CX-9, but also the longitudinal members of the Mazda CX-5. Finally, install all the above accessories, where can you see that there is a problem with the stringer.
So if you encounter this situation, how will you deal with it? Leave a message below to say your solution...